Truck side frame.



W. D. FORSYTH.

TRUCK SIDE FRAME.

APPLICATION FILED mm; 1a, 1913.

Patented Jn. 19, 1915.

THE NORRIS PETERS C0,. FHOTO-LITHQ. WASHINGTON. D. c.

UNITED STATES FATE T' WILLIAM D. FORSYTH, OF YOUNGSTOWN, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS,-

@FFIQE.

TO RAILWAY PRODUCTS CORPORATION, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

TRUCK SIDE FRAME.

Specification of Letters Patent.

Patented Jan. 19, 1915.

Application filed June 16, 1913. Serial No. 773,859.

T 0 all whom it may concern:

Be it known that I, WVILLIAM D. FORSYTH, a citizen of the United States, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented new and endurance of the frames into which said members enter.

My invention consists of a truck side frame constructed preferably of rolled and forged steel members, each member comprising parts which lie in planes substantially at right angles to each other, said parts being integral in said members, and when assembled in said frame have such relation to the point of support of the load of the car on which said frame is used as to resist the stresses imposed by said load flatwise and edgewise of said parts of said members; all of said members, each in itself, presenting a shallow and a deep section simultaneously to resist the burden of said load, and being constructed without bolt holes or other perforations for assembling said members and their attachments which would materially affect the strength of either the compression or tension members of said frame, and at the same time being so shaped, that when assembled, said frame has a truss-like construction which tends to strengthen it as an entirety. In the accompanying drawings, Figure 1 is a side elevation of my improved truck side frame; Fig. 2 is a side elevation of a bolster guide frame; Fig. 3 is a cross section of Fig. 1 on line aa,' Fig. 4 is a cross section of Fig. 1 on line 6-6 Fig. 5 is a cross section of Fig.1 on line cc,' Fig. 6 is a cross section of Fig. 1 on line ZZ; Fig. 7 is an elevation of a reinforcing connecting plate.

Like figures of reference refer to like parts throughout.

In Fig. 1, 1 is a compression member made of rolled or forged metal section, preferably of-steel, comprising two parts, 2 and 3, in different planes, preferably at right angles to each other and prefer-ably of T crosssection, 2 constituting the web of the member and 3 the flange extending on each side thereof throughout its length. Said compresslon member is so formed as to have a central part 4 and two ends 5, 5, connected by two downwardly extending parts 6, 6; said compression member is perforated at 7, l, 7 7, for the passage of journal box bolts 8, 8, 8, 8. Web 2 of said compression member 1 1s perforated at each end of said member for the passage of series of rivets 9, and in central and downwardly extending parts for the passage of series of rivets 10. 11 is a tension member made from a rolled or forged metal section, preferably of steel, comprislng two parts 12 and 13, in different planes, preferably at right angles to each other, and preferably of T cross-section, 13 constituting the web of the member and 12 the flange extending on each side thereof throughout its length. Said compression member is so formed as to have a central part 14 and two ends 15, 15, connected by two upwardly extending parts 16, 16, said tension member is pierced at its ends for the passage of series of rivets 17 and at its central and connecting parts for passage of series of rivets 18. Central part 1 and ends 5, 5, compression member 1, are in parallel but different horizontal planes. Central part 14 and ends 15, 15, of the tension member, are in parallel but different horizontal planes. 19 is a reinforcing connecting plate having a web 20 and flanges 21, 21, pierced with holes 22 for the series of rivets 9 and 17 and so formed as to conform to the underside of flange 3 of ends 5 of the compression member 1 and the top side of flange 12 of the ends 15 of tension member 11. A connecting plate 19 is placed on each side at each end of compression member 1 and tension member 11, in such position so that the rivet holes 22 of said reinforcing connecting plates shall register with the perforations in said tension and compression members for series of rivets 9 and 17 as hereinbefore de scribed. All of the perforations in the ends of the compression and tension members and in the connecting plates are reamed, so that all of the perforations in said members and said connecting plates shall be perfectly true and of the exact size of the rivets fastening said parts together. Said rivets are placed in said holes cold and headed so that the ends of the compression and tension members and said reinforcing connecting plates shall be accurately and tightly connected together. If desired, only one connecting plate may be used, but it is preferred that two be used at each end of the frame.

It will be noted that the connected ends of the compression and tension members are above axle centers 0, c, of axles 23, 23, in journal boxes 24, 24, which may be of any desired construction. The ]ournal boxes 24 are supported by brackets 25, 25, which are attached by rivets 26 to flange 12 of tension member 11, and are so formed that their ends 27, 27, will be parallel to ends 5 and 15 of the compression and tension members. Said brackets are perforated for the passage of journal box bolts 8, which are furnished with nuts 28, 28, 28, 28.

A metal frame 29, preferably a forging, although it may be made and used as a casting, is made substantially 1n the form shown in Fig. 2, having a bolster opening 30, surrounded by horizontal parts 31 and 32 and vertical parts 33 and 3a and constltuting a truss member of the truck side frame. Horizontal part 31 is so formed as to conform to the underside of flange 3 of compression member 1, and is perforated with rivet holes 10, so as to register with the holes in web 2 of compression member 1, made for the reception of series of rivets 10. Said forging or casting 29 has a flange 35 extending entirely around bolster opening 30. Horizontal part 32 is so shaped as to conform to the upper side of flange 12 of tension member 11, and is perforated with a series of holes 18 for the reception of a series of rivets 18, and so that said holes shall register with the series of holes in web 13 of tension member 11. Vertical parts 33 and 34: are so bent between the points 33, 33, and 3 1, 3 that rear surfaces of said vertical parts 33 and 34 of 29, when placed in contact with the webs 2 and 13, will be in a plane about midway between the front and rear planes of said webs 2 and 13. A single metal part 29 may be used in the construction of the frame, but preferably two of said parts 29 will be used, in which case said vertical parts are furnished with rivet holes 33", 3&, for the reception of rivets 36, Fig. 1. Nhen two of metal parts 29 are used, they are placed back to back between flanges 3 and 12 of compression and tension members respectively, so that all rivet holes in the webs in said parts 29 register, and are then reamed when series of rivets 10, 18 and 36, being made of the exact size of said holes, are inserted. therein when cold and headed so as to permanently fix compression member 1 and tension member 11 in said parts 29 accurately and tightly together, said truss member 29 resisting any tendency of members 1 and 11 to approach one or forged metal members, comprising a compression member made of T-shaped rolled metal section, having its central part and its ends in parallel horizontal planes, connected by downwardly extending connecting parts; a tension member made of a T-shaped rolled metal section, having its central part and ends in parallel horizontal planes, connected by upwardly extending parts; plates riveted to the webs at the ends of said compression and tension members; a truss member consisting of flanged metal plates having a bolster opening therein; means connecting said truss member to the downwardly extending web of the compression member and upwardly extending Web of the tension member.

2. A car truck side frame whose compression and tension members consist of rolled metal sections having a T-cross-section with the webs thereof arranged in said frame so as to contact at the ends of said compression and tension members; a truss member comprising two flanged plates, shaped so that the ends thereof straddle portions of the inwardly extending webs of said compression and tension members, said truss member being suitably aflixed to the webs of said compression and tension members, and of such depth and dimensions as to bring the central portions of said compression and tension members into parallel planes, the ends of said members being fastened together by a connecting plate riveted to their webs in a straight line intermediate the horizontal planes of the parallel parts of said compression and tension memhere.

3. A car truck side frame comprising flanged members spaced apart at their middle portions and contiguous at their end portions, and metal plates riveted to the ends of said members on each side thereof, said plates having flanges which lie against the flanges of said members.

4. A car truck side frame comprising flanged members substantially T-shape in cross-section, said members being spaced apart at their middle portions and contiguous at their end portions, and flanged metal plates riveted to said end portions of said members on each side thereof, said plates having flanges which lie against the flanges of said members.

5. A car truck side frame comprising flanged members spaced apart at their middle portions and contiguous at their end portions, flanged metal plates riveted to said end portions of said members on each side thereof, said plates having flanges Which lie against the flanges of said mem bers, and flanged members having a bolster opening therein riveted to said members at their middle portions on each side thereof.

6. A car truck side frame comprising flanged members substantially T-shape in cross section, said members being spaced apart at their middle portions and contiguous at their end portions, channel-shaped plates riveted to said end portions of said members, and flanged members having a 15 bolster opening therein riveted to said members at their middle portions.

In Witness whereof I have hereunto set my hand in the presence of two subscribing Copies of this. patent may be obtained for five. cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

